ZZ slewing rings are known worldwide as premium products in the field of rolling bearing technology. These machine elements have proven themselves many times over; they have high loadcarrying capacity, a versatile range of applications and are highly cost-effective. Due to their design, a single bearing can reliably support radial, axial and tilting moment loads. It is therefore possible in many cases to replace bearing arrangements comprising a combination of radial and axial bearings by a single bearing. This reduces ─ in some cases considerably ─ the costs and work required in the design of the adjacent construction and the fitting of bearings.
slewing bearing, also known as a slewing ring or turntable bearing, is a specialized type of bearing that enables rotational movement between two components. It is designed to support heavy loads, provide smooth rotation, and accommodate axial, radial, and moment loads simultaneously.
Slewing bearings consist of an inner and outer ring, rolling elements (such as balls or rollers), and a cage or separator that holds the rolling elements in place. The inner and outer rings have raceways that allow the rolling elements to roll and transmit loads.
Slewing bearings are commonly used in applications that require the rotation of large and heavy equipment, such as cranes, excavators, wind turbines, construction machinery, and industrial turntables. They play a crucial role in enabling smooth and controlled rotation while supporting the weight and loads of the equipment.
Slewing bearings come in various designs and configurations to meet the specific requirements of different applications. Some common types include:
Single-row ball slewing bearings: These bearings consist of a single row of balls and are suitable for light to moderate loads and low-speed applications.
Double-row ball slewing bearings: These bearings have two rows of balls and can handle higher loads and speeds compared to single-row designs.
Crossed roller slewing bearings: These bearings use crossed cylindrical rollers instead of balls, providing high load-carrying capacity and rigidity.
Three-row roller slewing bearings: These bearings utilize three rows of cylindrical rollers and are designed to handle extremely heavy loads and provide high axial and radial rigidity.
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